Agestam_1985_volume_Spruce_SI: Volume function for Spruce from Agestam (1985), including SI.

View source: R/Agestam_1985.R

Agestam_1985_volume_Spruce_SIR Documentation

Volume function for Spruce from Agestam (1985), including SI.

Description

Volume function for Spruce from Agestam (1985), including SI.

Usage

Agestam_1985_volume_Spruce_SI(
  basal_area_Spruce_m2_ha,
  SI_Spruce,
  age_at_breast_height_Spruce,
  stems_ha_Spruce,
  stems_ha_other
)

Arguments

basal_area_Spruce_m2_ha

Basal area over bark Spruce, m2/ha.

SI_Spruce

Site Index H100 of Spruce, meters, from Hägglund 1972,1973.

age_at_breast_height_Spruce

Age at breast height of Spruce stems.

stems_ha_Spruce

Spruce stems per hectare.

stems_ha_other

Stems per hectare of other tree species.

Details

Function: G2

Number of plots: 143

Multiple correlation coefficient: 0.997

Standard deviation about the function (sf): 0.060

sf/standard deviation about the mean: 8.3

Value

Volume Spruce m3sk/ha.

Source

Agestam, E. (1985) 'A growth simulator for mixed stands of pine, spruce and birch in Sweden. Diss. Swedish University of Agricultural Sciences. Report no. 15. Dept. of Forest Yield Research. ISSN 0348-7636. ISBN 91-576-2528-x. 150 pp. Garpenberg, Sweden; page. 38.


Silviculturalist/forester documentation built on April 20, 2024, 2:13 p.m.